I am using Nokia Asha 200. It's a very good phone.
Pros
* Build quality is solid
* Qwerty keypad is a treat. The keys are well laid out and offers great tactile feedback
* Screen is very vivid and also visible under sunlight
* Sound quality is excellent both via loudspeakers and earphones
* Camera quality is surprisingly very good for a feature phone
* Dual SIM
* Battery backup is superb
* Supports Java apps and games

Cons
* Default browser is a bit slow however you can use Opera Mini or UC Browser, both very capable browsers for Java phones
* Doesn't support WhatsApp officially

Overall a great QWERTY feature phone. I have used Nokia X2-01 which was also nice and now using Nokia Asha 200 which is simply awesome phone. :-)